121521-89-9

Basic information

• Product Name: dimethyl heptamethyllithospermate B
• Synonyms: dimethyl heptamethyllithospermate B
• CAS NO: 121521-89-9
• Molecular Weight: 844.867
• Mol File: 121521-89-9.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: dimethyl heptamethyllithospermate B(CAS DataBase Reference)
• NIST Chemistry Reference: dimethyl heptamethyllithospermate B(121521-89-9)
• EPA Substance Registry System: dimethyl heptamethyllithospermate B(121521-89-9)

Safety Data

• Hazardous Substances Data: 121521-89-9(Hazardous Substances Data)

Upstream product

• 186581-53-3 diazomethane 
• 121570-16-9 ammonium-potassium lithospermate B 
• 77-78-1 dimethyl sulfate 
• 115939-25-8 salvianolic acid B 
• 55757-13-6 salvianolic acid B 

Downstream Products

• 121480-73-7 3-[(2S,3R)-2-(3,4-Dimethoxy-phenyl)-3-hydroxymethyl-7-methoxy-2,3-dihydro-benzofuran-4-yl]-propan-1-ol 
• 54910-32-6 (R)-3-3(3,4-dimethoxyphenyl)propane-1,2-diol 
• 54814-41-4 3-(3,4-dimethoxy-phenyl)-2-hydroxy-propionic acid methyl ester 
• 121449-72-7 dimethyl trimethyl epiblechnate 

Relevant articles and documents

Reassignment of the configuration of salvianolic acid B and establishment of its identity with lithospermic acid B

Salvianolic acid B and lithospermic acid B are the major components of Salvia miltiorrhiza, which is one of the most popular herbal traditional medicines in Asian countries. Salvianolic acid B and lithospermic acid B are reported to have identical structures except for the configurational assignments of two stereocenters. Through chemical correlation between a degradation product of salvianolic acid B and synthetic material, the absolute configuration of Salvianolic acid B has been corrected to establish that Salvianolic acid B and lithospermic acid B are in fact the same compound.